Hyaenodon

Hyaenodon (`hyaena-toothed`) is the type genus of Hyaenodontidae, a group of extinct carnivorous creodonts of the family Hyaenodontidae endemic to all continents except South America, Australia and Antarctica, living from 42—15.9 mya, existing for approximately {Mya|42-15.9|million years}. The various species of Hyaenodon competed with each ot.....
Found on http://en.wikipedia.org/wiki/Hyaenodon

Hyaenodon

extinct genus of early, primitive mammalian carnivores that first appears in the fossil record in late Eocene time and persists through the ...
Found on http://www.britannica.com/eb/a-z/h/87
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